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Trimellitic Anhydride

Trimellitic Anhydride
Detailed description
Trimellitic anhydride (TMA)
Molecular formula:C9H4O5
Structural formula:
CAS No.:552-30-7
Physical and chemical properties:Appearance: white or light yellow flake.

Solubility: soluble in hot water, acetone, N,N-dimethylformamide, 

ethyl acetate, cyclohexanone, soluble in absolute 

ethanol and reactive with it.  

Uses:

TMA is mainly used to produce plasticizer (TOTM),

 polyester resin for powder coating, polyurethane 

resin for insulation varnish, water-soluble alkyd resin 

coating, epoxy curing agent, heat-resistant laminates, 

synthetic dyes, heat-resistant varnish, stabilizer, 

softener for fibers, pigment, water treatment 

agent, filmstrip and surfactant etc.

Packing:

25kg kraft paper composite bag lined with plastic,

 500kg or 1000kg woven bag lined with plastic.

Quality index:ItemQuality index
Appearancewhite or light yellow flake
Acid value, mgKOH/g            ≥873
Anhydride content, wt%        ≥98
Melting point, ℃                   ≥164
Melt color (Pt-Co)                         ≤130#
PA content, ppm                   ≤300 (Superior≤100)
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